Consecutive-view apparatus.



Patented Nov. 7, |s99..

H. CASLEB. CONSECUTIVE VIEW APPARATUS.

(Application filed May 9, 1899.)

2 Sheets-Sheet I,

(No Model) INVENTOR M WITNESSES: 4M9 ma fQ yx ATTORNEYS THE norms Psrins co, FNOTO-LITHQ, WASHINGTON n. 04

A No. 636,7l7. Paten't'd- Nov. 7, I899. H. CASLER.

BONSECUTIV'E'VIEW APPARATUS.

(Application med May 9, 1899.) '(No Model.)

2 Sheets-Sheet 2,

umuu N WITNESSES: W INVENTOR ATTORNEY5 Niren 'rniins HERMAN CASLER, Oh CANASTOTA, NlilV YORK.

CONSEC-UTWE- 'VIEW APPARATUS.

SECEFICATION forming part of Letters Patent'lil'o. 636,717, dated November '7', 1899.

Application filed May 9, 1899. Serial No. 716,117. (No model.)

To all whom may concern.-

Be it known that I, HERMAN Gasman, a citizen of the United Statesmcsiding at Oanastota, in the county of Madison and State of New York, have invented certain new and useful Improvements in Consecutive-View Apparatoe; and I do hereby declare the following to he a full, clear, and exact description of the invention, such as'will enable others skilled in the art to which it appertains to make and use the same.

My invention relates generally to improvements in consecutive-view apparatus such as employ a flexible picture-snarl p or film, and relates particularly to improvements in mechanism employed for varying the rate of feeding of such picture-strip or film and in the means employed for unwinding the strip or film from the supply-reel.

My invention consists in the novel means employed for varying the rate of feeding of the picture-strip or him and in the novel means empi ed for unwinding the strip or film from the supply-reel.

i T he objects of my invention are to improve thefdevices employed for varying the rate of ieeding of films or picture-strips in consecu- .tive-view apparatus, to render such mechanism as simple and efiective as possible, and

to improve the means employed for drawing the strip or film from the supply-reel and avoid undue strain upon such strip or film.

These objects are attained in the invention herein described, and illustrated in the draw- 5 ings which accompany and form a part of this specification, in which the same reference-numerals indicate the same or corresponding parts, and in which Figure 1 is a vertical longitudinal section of a consccutive-view-reproducing apparatus constructed in accordance witlun y in vent-ion,

In the drawings, 1 is the outer case of a consecutive-view-projectingapparatus;2,theobjective lens thereof; 3, a light-opening inthe side of the case, outside of which a suitable projecting-lantern or other source of light may be placed, and i is a mirror which reflects the light entering through the aperture 3 into the lens 2. l

5 is a supply-reel, rovolubly mounted, from which the film may be drawn, and (i is a winding-up reel, likewise revolubly mounted.

7 7 are guide-pulleys.

8 is, a support located transversely of the path of the rays of light, and 9 is a spring pressed frame surrounding the opening in the plate 8 and tending to prossagainstsaid plate. The frame therefore serves to hold the film steady while being exposed and to olior some slight frictional resistance to the passage of the film across the optical field.

10 and 11 are two feeding-rollers for feed ing the film forward intermittently. Roller 1.0 is'segmental, having the greater portion of its face cut away, leaving a working surface-extending through only a portion of thecircumi'erencc. It is mounted upon the main driving-shaft 12. Roller ll is mounted on a lever 13, likewise mounted on the shaft 1;. A link '14 connects the frame 13 and a barlo, supported by a pivoted block 16, pivoted to the carriage l7, and arranged to slide along bar 15 when the carriage is moved laterally. A crank 18 on the shaft 12 is connected by a connecting-rod 19 to the end of the bar 15. The bar 15 is restricted against longitudinal movement by a link 20. The carriage 17 is mounted upon a suitable guide 21 and is provided with a rack 22. A pinion 23, which 90 maybe rotated by means of the lever 24, engages this rack. l-ly moving the lever 24, therefore, the lateral position of the carriage the section being taken through the optical axis. Fig. 2 is a transverse section of the variable-speed film-feeding mechanism on the line as m of Fig. 1 looking toward the front of the machine. Fig. 3 is a plan View of the feeding-rollers and connected parts. Fig. 4: is an elevation of the supply-reels and associated parts,illustrating a construction where in the hereinafter-mentioned paper strip is placed beside the film-strip; and Fig. 5 is a clan view ofthe construction shown in Fig. 4-.

may be changed.

The effect of varying the position of the carriage 17 is to vary the amount of vibratory movement of the roller 11. The crank 18 communicates a vibratory movement to the bar 15, the center of vibration of said bar being at the pivot by which block 16 is pivoted to the carriage 17. If this center of vibration be coincident with the point of attachment of link 14 with bar 15, then obviously the u tion,

'of the bar 15 communicates no motion to the .11 and changing the direction of such vibraroller 11. If the center of vibration be to the right of the said point of-attachment of the link 14, then roller 11 vibrates in opposition to the movement of the working face of roller 10, while if the center of vibration be to the left of the said point of attachment roller ll ter of vibration to the right or to the left of the point of attachment of the link 14 to the bar 15.

Varying the degree of vibration of the roller tied with respect to the direction of motion of the working face of the roller 10 has the elfeetfif varying the rate of feeding of the film, for it varies the time during which the working face of roller 10 and roller ll are in contact during each revolution of roller 10.

The shaft 25, upon which the winding-up reel 6 is mounted, is driven from shaft 12 by a belt 20, running over a pulley 27 on shaft :3 and over a pulley 28 on shaft 35, Fig. 5, and by a frictional driving device :29, interposed between pulley 28 and shaft 25, which permits said pulley to slip upon said shaft when all of the slack in the tilm has been taken up. In order to prevent the strain upon the film produced by the tendency of the reel 6 to revolve from causing motion of the lihn through the field of the apparatus to occur during the intervals of exposure, when the film should be absolutely stationary, the tilm is passed about a series of snubbing posts ll), which sullice to prevent the strain prod need by the winding-up reel from reachitr that portion of the film which passes through the optical axis.

In consecutive-view apparatus it is desirable that the film shall bedrawn from the supply-reel by some meanswhich operates more gently and uniformly than the intermittentlyoperating feeding mechanism by which the film is moved intermittently and with ex tremc rapidity through the field of exposure or illumination, both in order that possible injury to the lilni may be avoided and in order that the movement of the lihn through the held of f exposure or illumination may be as rapid as It is common to provide a separate possible. feeding mechanism operating uniformly for drawing the lilm from thcsupply-reel. laccomplish this purpose more simply, however, bycmploying a flexible strip 331, wound upon the supply-reel 5 with the film, so that it is interposed between the successive layers of the film, and which passes directly to tho winding-up reel i ant. is wound upon said reel 6 with the lihn. 'lhis strip 31 may be of paper. As it is wound up by the winding-up reel it causes the supply-rcel to rotate and so to unwind both the strip Ill and the lilm.

The operation of the apparatus is as follows; When the d riviug-shaft 12 is rotated,the

feeding-roll 10 is rotated, and during each the reel 6 by the revolution of said reel, which slips upon its shaft when the slack in the film has been taken up but the rat at which shaftv :25 is driven is such that the rotation of reel (3 is nearly continuous. As reel 6 rotates it winds up the paper strip 31, which connects said reel and the supply-reel 5, thus causing the supply-reel to rotate and unwind the strip 31 and the film-strip. If the pivotal point of the block 16 be to the right of the point of attachment of link 1% to bar 15, then roller 11 vibrates up and down as the roller 10 revolves in opposition to the motion of the working face of roller 10, thus rendering the period of contact between the rollers 11 and 10 and the film of shorter duration than would be the case were roller 11 stationary, while if the pivot of block 16 be to the left of the point of attachment of link It to bar 15 the said period of contact is longer than if'the roller 11 were stationary, the roller 11 vibrating up and down in conjunction with the movement of the working face of roller 11). lly movingthe block 16 along the bar 15 by means of the 10-- ver 24, therefore, the rate of feeding of the film may be varied at will.

A shutter 32 may be driven, from the shaft 12 by means of a shutter-shaft and suitable gearing.

The strip 31, by which the film is unwound from the supply-reel, need not be woundbetween the layers of the film-strip, but may be to one side of the film-strip. In such case both the supply and the winding-up reel may be in two sections, one for the film and the other for strip 31. This is illustrated in Figs. 4 and 5, in which 5 and 5 are the sections of the supply-reel, and 6' one section of the winding-up reel. The two sections of each reel are connected together by being keyed to theshaft upon which they are mounted in common.

When the paper strip 31 is placed to one side of the film-strip, as in the construction shown in Figs. 4 and 5, the light opening3 may be in the rear end of the case 1, directly in line with the axis: of the objective lens. The mirror 4 is not required.

When the construction shown-in Figs. 4 and 5 is employed, the strip 31 should have the same thickness as the film-strip, so that the ell'eetive diameters of both sections of the winding-up reel may increase at the same rate.

llaving thus completely described my invention, what I claim, and desire to secure by- Letters llat-ent, is-

l. In a consecutiveview apparatus, the combination, with'a" segmental feed-roller, and means for rotating the same, of asecond feed-roller, adapted to coaet with said seg-. mental feed-roller in feeding a tilmor picturestrip, means for vibrating said second roller,

and means for varying the amplitude of vibration.

2. In a consecutive-view apparatus, the combination, with a segmental feed -roller, and means for rotating the same, of a second feed-roller, adapted to coact with said segmental feed-roller in feeding a film or picturest'rip, a support therefor pivoted concentrically with the segmental feed-roller, means for vibrating said second feed-roller, and means for varying the amplitude of vibration.

3. In a consecutive-view apparatus, the combination, with a segmental feed-roller, and means forvrotating the same, of a second feed-roller, adapted to coact with said segmental feed-rollerin feeding a film-or picturestrip, and means for vibrating said second roller in unison with, or in opposition to, the movement of the working face of 'the segmental roller, at will.

4. In a consecutive view apparatus, the combination, with a segmental feedroller, and means for rotating the same, of a second feed-roller, adapted to coact with said segmental feed-roller in feeding a film or picturestrip, means for vibrating said second roller in unison with, or in opposition to, the move-.

ment of the working face of the segmental roller, and means for varying the amplitude of vibration, at will.

5. In a consecutive-view apparatus, the combination, with a segmental feed-roller, and means for rotating the same, of a second feed-roller, adapted to coact with said segmental feed-roller in feeding a film or picturestrip, means for vibrating said second roller in a path concentric with said segmental feedroller, and means for varying the amplitude of vibration.

6. In a consecutive-view apparatus, the combination, With a segmental feed-roller, and means for rotating the same, of asecond feed-roller, adapted to coact with said segmental feed-roller in feeding a film or picturestrip, a vibrating member adapted to vibrate about a center of vibration, means for vibrating such member about such center in unison with the revolution of the segmental feedroller, means for moving such center of vibration at will, and means for movably supporting the second feed-roller and for connecting it to said vibrating member.

7. In a consecutiveview apparatus, the combination, with a segmental feed -roller, and means for rotating the same, of a second feed-roller, adapted to coact with said segmental feed-roller in feeding afilm or picturestrip, a pivoted guide-block, a bar adapted to slide within said pivoted guide-block, a movable carriage to which said guide-block is pivoted, means for moving said carriage, means for vibrating said bar in unison with the revolution of the segmental feed-roller,

combination, with a segmental feed-roller, and means for rotating the same, of a second feed-roller, adapted to coact with said segmental feed-roller in feeding a film or picturestrip, a pivoted guide-block, a bar adapted to slide within said pivoted guide-block, a

movable carriage to which said guide-block is pivoted, means for moving said carriage, means for vibrating said bar in unison with the revolution of the segmental feed-roller, a support for said second feed-roller pivoted concentrically with the segmental feed-roller, and means for connecting said support and vibrating bar, substantially as described.

'9. In a consecutive-view apparatus, the combination, with supply and winding-up reels for a suitable film or picture-strip, and means for driving the winding-up reel, of a flexible strip, other than said film or picturestrip, wound upon the supply-reel, and connecting said reel to, and arranged to be wound upon, the winding-up reel, and serving to rotate the supply-reel and unwind the film or picture-strip as the winding-up reel rotates, and feeding mechanism for feeding the film intermittently through the field of the apparatus, acting upon the film, but not upon said other flexible strip.

10. In a consecutive-view apparatus, the combination, with supply and winding-up reels for a suitable film or picture-strip, means for driving the winding-up reel, and means for feeding the film or picture-strip through the field of the apparatus, of a flexible strip, other than said film or picture-strip, wound upon the supply-reel, and connecting said reel to, and arranged to be wound upon, the winding-up reel, and serving to rotate the supply-reel and unwind the film or picturestrip as the winding-up reel rotates, and feeding mechanism for feeding the film intermittently through the field of the apparatus, acting upon the film, but not upon said other flexible strip.

11. In a consecutive-view apparatus, the combination, with supply'and winding-up reels for a suitable film or picture-strip, and means for driving the winding-up reel, of a flexible strip, other than said film or picturestrip, wound upon the supply-reel between the layers of the film or picture-strip, and connecting said supply-reel to, and arranged to be wound upon, the winding-up reel, and serving to rotate the supply-reel and unwind the film or picture-strip as the winding-up reel rotates, and feeding mechanism for feeding the film intermittently through the field of the apparatus, acting upon the film, but not upon said other flexible strip.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

HERMAN CASLER.

Witnesses:

HARRY M. MARBLE, H. J. COLLINS.

Correction in Letters Patent No. 636,717.

It is hereby certified that Letters Patent No. 636,717, granted November 7, 1899,

upon the application of Herman Oasler, of Oanastota, New York, for an improvement in Consecutive-View Apparatus, were erroneously issued to said Casler, as sole owner of the invention; whereas said Letters Patent should have been issued to the American Mutoscope Company, of New Jersey, said American Mutoscope Company being assignee of the entire interest in said invention as shown by the assignment of record in this Office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed, countersigned, and sealed this 21st day of November A. D., 1899.

[SEAL] WEBSTER DAVIS,

Assistant Secretary of the Interior. Gountersigned G. H. DUELL,

Commissioner of Patents. 

